package com.itheima.interceptor;

import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerExceptionResolver;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @Description:
 * @Version: V1.0
 */
@Component
public class ExceptionResolver implements HandlerExceptionResolver {
    @Override
    public ModelAndView resolveException(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) {
        return null;
    }


    /*@Override
    public ModelAndView resolveException(HttpServletRequest httpServletRequest,
                                         HttpServletResponse httpServletResponse,
                                         Object o, Exception e) {

        System.out.println("正在进行异常处理");
        //发生异常,给出提示信息,跳转错误页面
        ModelAndView modelAndView = new ModelAndView();
        if( e instanceof NullPointerException){
            modelAndView.addObject("msg","空指针异常");
        }else if ( e instanceof  ArithmeticException){
            modelAndView.addObject("msg","算数运算异常");
        }else{
            modelAndView.addObject("msg","未知的异常");
        }
        modelAndView.setViewName("error.jsp");
        return modelAndView;
    }*/
}
